College of Arts and Sciences, American University of Sharjah P.O. Box 26666, Sharjah, United Arab Emirates

Received:
15
October
2005
Accepted:
29
November
2005

Abstract

We study the zero-temperature physics of planar Josephson
junction arrays in the self-dual approximation in the presence of external
offset charges and magnetic fluxes. We introduce a new Landau-Ginzburg
formulation to describe both types of topological excitations (electric and
magnetic) that determine the quantum phase structure of the model. Through the
condensation of the boson fields, this approach captures with ease various
phases of Josephson junction arrays including the superconducting phase, the
insulating phase, in addition to a novel quantum Hall phase that results from
the condensation of composites formed by electric and magnetic topological excitations.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.